Kinetics of polymerization of methyl methacrylate initiated by photolysis of benzil with 420 nm radiation, have been investigated at 35 °C. The rate of monomer disappearance has been followed gravimetrically and the chain-length of the polymer formed, measured by viscometry. The dependence of the rate of polymerization and quantum yield of monomer conversion on the concentrations of the monomer and the initiator, absorbed light-intensity etc. has been studied in detail. A kinetic scheme has been proposed in the light of experimental results, involving i) a primary photochemical act of excitation of the sensitizer producing free radicals by hydrogen abstraction, ii) initiation of polymerization by free radicals generated and iii) termination of the active chain by mutual combination involving either coupling or disproportionation. © 1978 Dr. Dietrich Steinkopff Verlag.

R BHADURI

S ADITYA

University of Calcutta (informally known as Calcutta University or CU) is a collegiate public state university located in Kolkata, West Bengal, India.&nbsp;Within India it is recognized as a &quot;Five-Star University&quot; and accredited &quot;A&quot; Grade by National Assessment and Accreditation Council.

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The University of Calcutta has secured the Fifth position among the Universities of India in the prestigious &quot;Indian University Ranking 2019&quot; list, released by the NIRF of the Ministry of Human Resource Development, Government of India.

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It was established on 24 January 1857, and was one of the first institutions in Asia to be established as a multidisciplinary and Western-style university. Its alumni and faculty include several heads of state, heads of government, social reformers, prominent artists, only academy award winner and Dirac medal winner in India, many Fellows of the Royal Society and five Nobel laureates as of 2019 which is highest in South Asia.

University Of Calcutta

Photopolymerization of methyl methaerylate initiated by benzil in non-aqueous media

Colloid and Polymer Science Kolloid-Zeitschrift & Zeitschrift fÃ¼r Polymere

Benzil ( BZL)-dimethylaniline (DMA) exciplex interaction has been utilized to initiate the photopolymerization of methyl methacrylate at 40ºC in bulk and in solution. Depending on the nature of the solvent used, the monomer exponent values varied between 0.47 to 2.76. Initiator exponent values were found to be 0.29 and 0.15 with respect to [BZL] and [DMA], respectively. A low value of k P /kt and the high initiator transfer constant values indicated significant initiator-dependent termination. The semipinacol radical formed during irradiation is thought to be mainly responsible for primary radical termination while the generated ion radicals are presumed to participate in degradative initiator transfer. © 1983, Taylor & Francis Group, LLC. All rights reserved.

Journal of Macromolecular Science: Part A - Chemistry

Photopolymerization of Methyl Methacrylate Using the Benzil=Dimethylaniline Combination as the Photoinitiator

Journal of the Chemical Society, Perkin Transactions 2

Radical intermediates in the photochemical decomposition of benzoin and related compounds

Journal of Polymer Science Part A-1: Polymer Chemistry

Polymerization of acrylamide and methacrylamide photoinitiated by azidopentamminecobalt(III) chloride

Tellus

CO2-values May-July 1956 in Scandinavia

Canadian Journal of Chemistry

THE POLYMERIZATION OF STYRENE SENSITIZED BY ACETYL RADICALS

Journal of Polymer Science

Light-induced polymerization of some monomers containing allyl and methacrylate groups

Journal	Colloid and Polymer Science Kolloid-Zeitschrift & Zeitschrift fÃ¼r Polymere
Publisher	Steinkopff-Verlag
ISSN	0303-402X